Prebiotic Geochemical Automata at the Intersection of Radiolytic Chemistry, Physical Complexity, and Systems Biology
Prebiotic Geochemical Automata at the Intersection of Radiolytic Chemistry, Physical Complexity, and Systems Biology
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DOI：
10.1155/2018/9376183
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发表时间：
2018-01-01
期刊：
影响因子：
2.3
通讯作者：
Aono, Masashi
中科院分区：
文献类型：
--
作者：
Adam, Zachary R.;Fahrenbach, Albert C.;Aono, Masashi
易处理的生命史记录了由等级组织的细胞和更大程度的个体化组成的有机体的连续出现。这个层次中最低的对象层次是细胞，但尚不清楚生命系统的组织属性是否通过化学进化的前生物阶段向后延伸。如果细胞的系统生物学属性确实是以亚细胞物体之间的益生元合成关系为模板的，那么如何以捕获可能先于生命系统的任何层次结构的方式对细胞以下的物体级别进行分类并不明显。在本文中，我们绘制出物理组件之间的分层关系，驱动生产的关键益生元分子从辐解的少量丰富的分子种类。跨多个层次的连接赋予了创造和维持远离平衡的化学条件的潜力，并表现出非线性系统的行为最好近似使用自动机形式主义。在每个对象级别的能量交换过程的“信息隐藏”的建筑属性是共享的稳定，多层自动机，如数字计算机。这些attributesmay表明，由亚原子级物体的能量耗散所提供的系统复杂性与可能先于生物系统的复杂自动机的出现之间存在着深刻的联系。
The tractable history of life records a successive emergence of organisms composed of hierarchically organized cells and greater degrees of individuation. The lower most object level of this hierarchy is the cell, but it is unclear whether the organizational attributes of living systems extended backward through prebiotic stages of chemical evolution. If the systems biology attributes of the cell were indeed templated upon prebiotic synthetic relationships between subcellular objects, it is not obvious how to categorize object levels below the cell in ways that capture any hierarchies which may have preceded living systems. In this paper, we map out stratified relationships between physical components that drive the production of key prebiotic molecules starting from radiolysis of a small number of abundant molecular species. Connectivity across multiple levels imparts the potential to create and maintain far-from-equilibrium chemical conditions and to manifest nonlinear system behaviors best approximated using automata formalisms. The architectural attribute of "information hiding" of energy exchange processes at each object level is shared with stable, multitiered automata such as digital computers. These attributesmay indicate a profound connection between the system complexity afforded by energy dissipation by subatomic level objects and the emergence of complex automata that could have preceded biological systems.